import logging
import requests
from django.conf import settings

from .base import BaseCaptcha

logger = logging.getLogger(__name__)


class Captcha(BaseCaptcha):
    """
    Ref: https://developers.google.com/recaptcha/docs/verify
    """

    def __init__(self, *args, **kwargs):
        self.secret = getattr(settings, 'CAPTCHA_RE_SECRET_KEY', None)
        self.validate_url = 'https://www.recaptcha.net/recaptcha/api/siteverify'
        return super(Captcha, self).__init__(*args, **kwargs)

    def generate(self, *args, **kwargs):
        # Generated by google.
        pass

    def verify(self, user, ip, re_token):
        if not re_token and user:
            if not self._active_for_user(user):
                return True
            else:
                return False

        validate_data = {
            'secret': self.secret,
            'response': re_token,
            # 'remoteip': ip
        }

        try:
            res = requests.post(
                self.validate_url,
                data=validate_data,
                timeout=1
            )
            if res.json().get('success'):
                return True
            else:
                return False
        except Exception as e:
            # For better user experience, assume captcha valid.
            logger.warning(e)
            return True